Rotary cutter-head and bit



UNITED STATES PATENT @FFICE.

ABRAHAM PRIODE, or POMEROY, OHIO."

ROTARY CUTTER-HEAD AND BIT.

SPECIFICATION forming part of Letters Patent No. 508,181, dated November'7, 1893. Application filed December 30 1892. serial No. 456,801- (Nomodel.)

To all whom it may concern.-

Be it known that I, ABRAHAM PRIODE, a citizen of the United States,residing at Pomeroy, n the county of Meigs and State of Ohio, haveinvented certain new and useful Improvements in Rotary Cutter-Heads andBits; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being badto the accompanying drawings, and to the letters ofv reference markeditihereon, whichform a part of this specificaion.

My invention relates to improvements in rotary cutter heads and bits,and relates specially to what may be termed a universal head for woodworking machines such as sticker machines, friezing machines, matchingmachines and the like.

The object of my invention isfto providea rotary head which will permitofan easy and ready application ofbits and which will rigidly secure thebit against improper move ment and thus insure the best work.

The object is further to provide a -head adapted to receive bits whichwill have double cutting or interchangeable ends in order that singlebits may effectively do double service.

The object is further to provide a rotary head and bits therefor whichwill be of simple, durable and inexpensive construction, easy ofadjustment and thoroughly efficient in operation, thus possessing allthe requirements to render the improvement practical and useful.

To attain the desired objects the invention consists of a rotary cutterembodying novel features of construction and bits of peculiarconstruction as will be disclosed herein.

Figure 1 represents a perspective view of my improved rotary cutter headwith bits applied such as are employed in planing work. Fig. 2 Irepresents a transverse sec tional view thereof. Fig. 3 represents asectional detail view to show particularly thev manner of securing orwedging the bits in the head, and Fig. 4 represents detail views ofdifferent forms of bits specially adapted for use in connection with myhead and by means of which numerous designs may be cut on wood surfaces.

Referring by letter to the drawingsA designates the cutter head orblock, having the shaft opening B, the oppositely arranged or directedoffsets O, the longitudinally arranged rectangular passages or sockets Dand the transverse-channels E, all as clearly shown. The transversechannels or grooves E are adapted or constructed to receive the keys Fhaving the securing steps G and having one of their ends threaded toreceive the nut H the purpose of which is to draw upon the keys to causethem to wedge. Fitting in the passages or sockets D are the fiat platesJ, also having the steps K which act in conj unction or are engaged bythe steps of the keys to secure the plates, and the plates are furtherprovided with the depending flange L the purpose of which is to preventany foreign matter from passing under the plate.

From this construction it is evident that the plates are acted upon bythe keys which act as a wedge to hold the bits M in place, and it willbe noted that some of the bits as N, O, P, Q, R and S have doublecutting edges T and U of different shapes and by this construction thebits may be adjusted to make surface outlines or designs of many forms,as circumstances require, or a plain bit may be used and the head willbe thoroughly efficient under all circumstances.

It will thus be seen that I provide a rotary head and bits which can beused for all kinds of wood work on surface and edge with ease and a headwhich will permit the removal and application of bits of different kindswith rapidity and the bits will be firmly secured. It will also be seenthat I provide a head which is the embodiment of simplicity, durabilityand cheapness and by reason of its efficiency is thus renderedeconomical and useful. I prefer to rou'ghen one face of the bits orcutters to cause them to be secured more rigidly in the head, as shownat V.

It will be seen that I may employ a four side cutter-head if desired andapply bits for producing simultaneously plain and molded surfaces, as isevident.

I claim-- 1. A rotary cutter head having the longitudinal passages, andthe communicating transverse channels, bits arranged in said passages,plates engaging said bits and hav- ICO verse channels and having stepsfor engaging with the steps of the plate to secnrethern in place, andtightening or adjusting nuts engaging the keys.

In testimony whereof I affix mysignature in presence of two witnesses.

' ABRAHAM PRIODE.

\Vitnesses:

WALLACE B. CURTIS, EDWARD H. SCHARF.

